Resistor assembly of alternating current hoisting equipment motor

Abstract

The utility model relates to the technical field of crane resistors, in particular to a resistor assembly of an alternating current hoisting equipment motor, which comprises a protection box main body and a mounting box, a mounting box is mounted at one end of the protection box body, and sliding grooves are formed in the front end and the rear end of the mounting box. The two ends of a lead screw are installed on the inner walls of the upper end and the lower end of an installation box through bearings, a motor bolt is fixed to the top end of the installation box, and the motor is connected with the lead screw in an inserted mode. A nut block is connected with the lead screw in a threaded rotation mode, a mounting plate is welded to the end, close to the protection box body, of the nut block, and sliding shafts are welded to the outer walls of the two sides of the nut block; by improving the resistor assembly of the alternating current hoisting equipment motor, the resistor assembly has the advantages of being reasonable in structural design, comprehensive and thorough in resistor dust removal and suitable for resistors of different sizes, and therefore the problems and defects in the prior art and equipment are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of crane resistors, and more specifically, to a resistor assembly of an AC lifting equipment motor. Background Art

[0002] Crane refers to a multi-action lifting machine that can lift and carry heavy objects vertically and horizontally within a certain range. It is also called overhead crane, overhead crane, and crane. Crane resistors are suitable for use in AC 50 Hz, low voltage to 660 volt circuits to control the starting and braking of motors.

[0003] The existing patent number CN 219349896 U discloses a new type of crane resistor. By starting the servo motor to drive the screw to rotate, the threaded block can be moved in the vertical direction, and then the position of the fan is adjusted, so that the fan blows air to different layers of the resistor body, and blows the dust out of the protective box from the through groove, so as to quickly complete the dust cleaning process of various positions of the resistor body. However, there are many gaps between the resistors, and the thickness of the resistor components varies. The way that the fan moves up and down to blow air may only clean local dust, and some corners and gaps may be missed, making the cleaning incomplete.

[0004] In view of this, the existing problems are studied and improved, and a resistor component for an AC lifting equipment motor is provided, aiming to solve the problem and improve the practical value through this technology. Utility Model Content

[0005] The purpose of the utility model is to provide a resistor assembly for an AC lifting equipment motor to solve the problems and shortcomings raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides a resistor assembly for an AC lifting equipment motor, which is achieved by the following specific technical means:

[0007] A resistor assembly for an AC lifting equipment motor comprises: a protection box body, an installation box, a slide groove, a lead screw, a motor, a nut block, a mounting plate, a sliding shaft, a first cam shaft, a swing rod, a fan, a second cam shaft, a connecting rod, a worm wheel, a worm, a gear, a rack, a turntable, a groove, a lead screw, a slider, and a third cam shaft; a mounting box is installed at one end of the protection box body, and slide grooves are provided at the front and rear ends of the mounting box; both ends of the lead screw are installed on the inner walls at the upper and lower ends of the mounting box through bearings, and the motor is bolted to the top of the mounting box, and the motor is plug-connected to the lead screw; the nut block is connected to the lead screw by a threaded rotation method, and a mounting plate is welded to one end of the nut block close to the protection box body, and sliding shafts are welded to the outer walls on both sides of the nut block; the sliding shaft is plug-connected to the inner wall of the slide groove by a clearance fit sliding method; a first cam shaft is welded to the top of the mounting plate, and the swing rod is sleeved on the first cam shaft through a bearing. The worm gear is mounted on the inner wall of the mounting plate through a bearing; the worm gear is connected to the outer wall of the sliding shaft through a clearance fit rotation mode, and the end of the worm gear away from the nut block is plugged with a gear, and the worm gear is meshed with the worm gear; the rack bolt is fixed to the inner wall of the mounting box, and the gear is meshed with the rack; the turntable is welded to the top of the worm gear, and a groove is radially provided at the top of the turntable, and the two ends of the screw rod are mounted on the inner walls at both ends of the groove through bearings; the slider is connected to the screw rod through a threaded rotation mode, and the slider is plugged and connected to the inner wall of the groove through a clearance fit sliding mode; the top of the slider is welded with a third cam shaft, and the other end of the connecting rod is sleeved on the outer wall of the third cam shaft through a bearing.

[0008] As a further optimization of the technical solution, the utility model provides a resistor assembly for an AC lifting equipment motor, wherein both ends of the worm are provided with through holes for installing the sliding shaft, and the end of the worm away from the nut block is a tubular structure, and the worm is sleeved and connected to the outer wall of the sliding shaft to form a rotating device.

[0009] As a further optimization of the technical solution, the utility model provides a resistor assembly for an AC lifting equipment motor, in which the lower end of the worm wheel is provided with a cylindrical protrusion, and a circular hole for installing the bearing is opened on the outer wall of the mounting plate, and the worm wheel is plug-connected to the inner wall of the mounting plate through the bearing to form a rotating device.

[0010] As a further optimization of the technical solution, the utility model provides a resistor assembly for an AC lifting equipment motor, wherein a hole for installing a bearing is provided on the outer wall of the swing rod, and the swing rod is connected to the outer wall of the first convex shaft through the bearing sleeve to form a rotating device.

[0011] As a further optimization of the technical solution, the resistor assembly of an AC lifting equipment motor of the utility model has holes for installing bearings at both ends of the connecting rod, and the two ends of the connecting rod are respectively connected to the outer walls of the second cam shaft and the third cam shaft through the bearings to form a rotating device.

[0012] As a further optimization of the technical solution, in the utility model, one end of the screw rod of the resistor assembly of the AC lifting equipment motor passes through the outside of the turntable, and a cross groove is provided on the end surface of the screw rod.

[0013] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0014] 1. Both ends of the worm of the utility model are provided with through holes for installing the sliding shaft, and the end of the worm away from the nut block is a tubular structure, and the worm is sleeved and connected to the outer wall of the sliding shaft as a rotating device; the lower end of the worm wheel is provided with a cylindrical protrusion, and the outer wall of the mounting plate is provided with a circular hole for installing the bearing, and the worm wheel is plug-connected to the inner wall of the mounting plate through the bearing as a rotating device. The control motor can rotate the lead screw and move the nut block up and down. Due to the meshing of the gear and the rack, the worm can be driven to rotate, and the worm wheel can drive the turntable to rotate.

[0015] 2. The utility model has a hole for installing bearings on the outer wall of the swing arm, and the swing arm is connected to the outer wall of the first cam shaft through the bearing sleeve to form a rotating device; holes for installing bearings are provided at both ends of the connecting rod, and the two ends of the connecting rod are respectively sleeved and connected to the outer walls of the second cam shaft and the third cam shaft through the bearings to form a rotating device, so that when the turntable rotates, the connecting rod is pulled, and the connecting rod pulls the swing arm to swing, so that the fan swings back and forth while blowing air, and blows air in all directions.

[0016] 3. One end of the screw rod of the utility model passes through the outside of the turntable, and a cross groove is provided on the end face of one end of the screw rod. The screw rod can be rotated by twisting the cross groove with a tool. The radial position of the slider on the turntable can be adjusted according to the thickness of the protective box body, thereby adjusting the swing amplitude of the swing arm.

[0017] 4. The utility model improves the resistor component of an AC lifting equipment motor, has the advantages of reasonable structural design, comprehensive and thorough resistor cleaning, and is suitable for resistors of different sizes, thereby effectively solving the problems and shortcomings in the existing technology and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0022] Figure 4 It is a partial structural schematic diagram of the utility model;

[0023] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the utility model.

[0024] In the figure: protection box body 1, installation box 2, slide groove 201, screw 3, motor 4, nut block 5, mounting plate 6, sliding shaft 7, first cam shaft 8, swing rod 9, fan 10, second cam shaft 11, connecting rod 12, worm gear 13, worm 14, gear 15, rack 16, turntable 17, containing groove 18, screw 19, slider 20, third cam shaft 21. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figures 1 to 5 The utility model provides a specific technical implementation scheme of a resistor component of an AC lifting equipment motor:

[0027] A resistor assembly for an AC lifting equipment motor comprises: a protection box body 1, a mounting box 2, a slide groove 201, a lead screw 3, a motor 4, a nut block 5, a mounting plate 6, a sliding shaft 7, a first cam 8, a swing rod 9, a fan 10, a second cam 11, a connecting rod 12, a worm wheel 13, a worm 14, a gear 15, a rack 16, a turntable 17, a receiving groove 18, a lead screw 19, a slider 20, and a third cam 21; a mounting box 2 is mounted on one end of the protection box body 1, and slide grooves 201 are provided at the front and rear ends of the mounting box 2; both ends of the lead screw 3 are mounted on the inner walls at the upper and lower ends of the mounting box 2 through bearings, and the motor 4 is bolted to the top of the mounting box 2, and the motor 4 is plug-connected to the lead screw 3; the nut block 5 is connected to the lead screw 3 by threaded rotation, and a mounting plate 6 is welded to the end of the nut block 5 close to the protection box body 1, and sliding shafts 7 are welded to the outer walls on both sides of the nut block 5; the sliding shaft 7 passes through a gap It is plugged and connected to the inner wall of the slide groove 201 in a sliding manner; a first cam 8 is welded to the top of the mounting plate 6, and a swing rod 9 is sleeved on the outer wall of the first cam 8 through a bearing, and a fan 10 is installed on the end of the swing rod 9 close to the protection box body 1; a second cam 11 is welded to the top of the end of the swing rod 9 away from the fan 10, and one end of the connecting rod 12 is sleeved on the outer wall of the second cam 11 through a bearing; a hole for installing the bearing is opened on the outer wall of the swing rod 9, and the swing rod 9 is sleeved on the outer wall of the first cam 8 through a bearing as a rotating device; holes for installing the bearing are opened at both ends of the connecting rod 12, and the two ends of the connecting rod 12 are respectively sleeved and connected to the outer walls of the second cam 11 and the third cam 21 through bearings as a rotating device, so that when the turntable 17 rotates, the connecting rod 12 is pulled, so that the connecting rod 12 pulls the swing rod 9 to swing, so that the fan 10 swings back and forth while blowing air, and blows air in all directions.

[0028] The worm wheel 13 is mounted on the inner wall of the mounting plate 6 through a bearing; the worm 14 is sleeved and connected to the outer wall of the sliding shaft 7 by a clearance fit rotation method, and the end of the worm 14 away from the nut block 5 is plugged and connected with a gear 15, and the worm 14 is meshed with the worm wheel 13; both ends of the worm 14 are provided with through holes for installing the sliding shaft 7, and the end of the worm 14 away from the nut block 5 is a tubular structure, and the worm 14 is sleeved and connected to the outer wall of the sliding shaft 7 as a rotating device; the lower end of the worm wheel 13 is provided with a cylindrical protrusion, and a circular hole for installing bearings is provided on the outer wall of the mounting plate 6, and the worm wheel 13 is plugged and connected to the inner wall of the mounting plate 6 through a bearing as a rotating device, and the control motor 4 can rotate the screw 3 and move the nut block 5 up and down. Since the gear 15 is meshed with the rack 16, the worm 14 can be driven to rotate, and the worm wheel 13 can drive the turntable 17 to rotate.

[0029] The rack 16 is bolted to the inner wall of the mounting box 2, and the gear 15 is meshed with the rack 16; the turntable 17 is welded to the top of the worm gear 13, and a groove 18 is radially provided at the top of the turntable 17, and both ends of the screw rod 19 are installed on the inner walls of both ends of the groove 18 through bearings; the slider 20 is connected to the screw rod 19 by a threaded rotation, and the slider 20 is plugged and connected to the inner wall of the groove 18 by a clearance fit sliding manner; one end of the screw rod 19 passes through the outside of the turntable 17, and a cross groove is provided on the end face of one end of the screw rod 19. The screw rod 19 can be rotated by twisting the cross groove with a tool, and the radial position of the slider 20 on the turntable 17 can be adjusted according to the thickness of the protective box body 1, thereby adjusting the swing amplitude of the swing rod 9.

[0030] A third cam 21 is welded to the top of the slider 20 , and the other end of the connecting rod 12 is sleeved on the outer wall of the third cam 21 via a bearing.

[0031] Specific implementation steps:

[0032] Control the fan 10 to make it blow air, control the motor 4 to rotate the lead screw 3, and move the nut block 5 up and down. Since the gear 15 is meshed with the rack 16, the worm 14 can be driven to rotate, and the worm wheel 13 can drive the turntable 17 to rotate. When the turntable 17 rotates, the connecting rod 12 is pulled, so that the connecting rod 12 pulls the swing rod 9 to swing, so that the fan 10 swings back and forth while blowing air, and blows air in all directions. If the swing amplitude of the fan 10 needs to be adjusted, the cross slot can be twisted with a tool to rotate the lead screw 19, and the radial position of the slider 20 on the turntable 17 can be adjusted according to the thickness of the protective box body 1, thereby adjusting the swing amplitude of the swing rod 9.

[0033] In summary: the resistor assembly of the AC lifting equipment motor has through holes for installing the sliding shaft through the two ends of the worm, and the end of the worm away from the nut block is a tubular structure, and the worm is sleeved and connected to the outer wall of the sliding shaft as a rotating device; the lower end of the worm wheel is provided with a cylindrical protrusion, and the outer wall of the mounting plate is provided with a circular hole for installing the bearing, and the worm wheel is plug-connected to the inner wall of the mounting plate through the bearing as a rotating device, the control motor can rotate the lead screw, and the nut block can be moved up and down, and the worm can be driven to rotate due to the meshing of the gear and the rack, and the worm can be driven to rotate, and the worm wheel can drive the turntable to rotate; the outer wall of the swing rod is provided with a hole for installing the bearing, and the swing rod is sleeved and connected to the outer wall of the first convex shaft through the bearing as a rotating device; the two ends of the connecting rod are provided with The hole is used to install the bearing, and the two ends of the connecting rod are respectively sleeved and connected to the outer walls of the second cam shaft and the third cam shaft through the bearing to form a rotating device, so that when the turntable rotates, the connecting rod is pulled, and the connecting rod pulls the swing rod to swing, so that the fan swings back and forth while blowing air, and blows air in all directions; one end of the screw rod passes through the outside of the turntable, and the end face of one end of the screw rod is provided with a cross slot, and the screw rod can be rotated by twisting the cross slot with a tool, and the radial position of the slider on the turntable can be adjusted according to the thickness of the protective box body, thereby adjusting the swing amplitude of the swing rod; through the improvement of the resistor component of an AC lifting equipment motor, it has the advantages of reasonable structural design, comprehensive and thorough resistor cleaning, and is suitable for resistors of different sizes, thereby effectively solving the problems and shortcomings in the existing technology and equipment.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A resistor assembly for an AC lifting equipment motor, comprising: A protection box body (1), a mounting box (2), a slide groove (201), a lead screw (3), a motor (4), a nut block (5), a mounting plate (6), a sliding shaft (7), a first cam shaft (8), a swing rod (9), a fan (10), a second cam shaft (11), a connecting rod (12), a worm wheel (13), a worm (14), a gear (15), a rack (16), a rotating disk (17), a receiving groove (18), a lead screw (19), a slider (20), and a third cam shaft (21); characterized in that: a mounting box (2) is mounted on one end of the protection box body (1), and slide grooves (201) are provided at the front and rear ends of the mounting box (2); the lead screw (3) The two ends of the nut (5) are mounted on the inner walls of the upper and lower ends of the mounting box (2) through bearings, and the motor (4) is bolted to the top of the mounting box (2), and the motor (4) is plug-connected with the lead screw (3); the nut block (5) is connected to the lead screw (3) by a threaded rotation method, and a mounting plate (6) is welded to one end of the nut block (5) close to the protection box body (1), and sliding shafts (7) are welded to the outer walls of both sides of the nut block (5); the sliding shaft (7) is plug-connected to the inner wall of the slide groove (201) by a clearance fit sliding method; a first convex shaft (8) is welded to the top of the mounting plate (6), and the swing rod (9) is sleeved on the first convex shaft (8) through a bearing. ), and a fan (10) is installed on the end of the swing lever (9) close to the protection box body (1); a second cam shaft (11) is welded on the top of the end of the swing lever (9) away from the fan (10), and one end of the connecting rod (12) is sleeved on the outer wall of the second cam shaft (11) through a bearing; the worm wheel (13) is installed on the inner wall of the mounting plate (6) through a bearing; the worm (14) is sleeved on the outer wall of the sliding shaft (7) in a clearance fit rotation manner, and the end of the worm (14) away from the nut block (5) is plug-connected with a gear (15), and the worm (14) is meshed with the worm wheel (13); the rack (16) is bolted The rotating disk (17) is welded to the top of the worm wheel (13), and a groove (18) is radially provided at the top of the rotating disk (17), and two ends of the screw rod (19) are mounted on the inner walls of the two ends of the groove (18) through bearings; the slider (20) is connected to the screw rod (19) by a threaded rotation mode, and the slider (20) is plug-connected to the inner wall of the groove (18) by a clearance fit sliding mode; a third cam shaft (21) is welded to the top of the slider (20), and the other end of the connecting rod (12) is sleeved on the outer wall of the third cam shaft (21) through a bearing.

2. The resistor assembly of an AC lifting equipment motor according to claim 1, characterized in that: Through holes for mounting the sliding shaft (7) are provided at both ends of the worm (14), and the end of the worm (14) away from the nut block (5) is a tubular structure, and the worm (14) is sleeved and connected to the outer wall of the sliding shaft (7) to form a rotating device.

3. The resistor assembly of an AC lifting equipment motor according to claim 1, characterized in that: The lower end of the worm wheel (13) is provided with a cylindrical protrusion, and the outer wall of the mounting plate (6) is provided with a circular hole for mounting a bearing, and the worm wheel (13) is plug-connected to the inner wall of the mounting plate (6) via the bearing to form a rotating device.

4. The resistor assembly of an AC lifting equipment motor according to claim 1, characterized in that: A hole for installing a bearing is provided on the outer wall of the swing rod (9), and the swing rod (9) is connected to the outer wall of the first convex shaft (8) through the bearing sleeve to form a rotating device.

5. The resistor assembly of an AC lifting equipment motor according to claim 1, characterized in that: Holes for installing bearings are provided at both ends of the connecting rod (12), and the two ends of the connecting rod (12) are respectively sleeve-connected to the outer walls of the second cam shaft (11) and the third cam shaft (21) through the bearings to form a rotating device.

6. The resistor assembly of an AC lifting equipment motor according to claim 1, characterized in that: One end of the screw rod (19) penetrates the outside of the rotating disk (17), and a cross groove is formed on the end surface of the screw rod (19).

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